Paper-carriage-return mechanism



E. T. EMLEY.

PAPER|CARRIAGE RETURN MECHANISM.

APPLlCATION FILED NOV. 2, I920.

' 4 SHEETS-SHEEI 1.

INVENTOR Patented Nov. 14, 1922.

E. T. EMLEY.

PAPER CARRIAGE RETURN MECHANISM.

APPLICATION FILED NOV. 2, I920.

Patented Nov. 14, 1922.

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INVENTOR ATTORNEY E. T. EMLEY.

PAPER CARRIAGE RETURN MECHANISM.

APPLICATION FILED NOV. 2, 1920.

1,4355 18. Patented Nov. 14, 1922.

4 SHEETS--SHEEI 3.

HIHHH INVENTOR M 77 ATTORNEY E. T. EMLEY.

PAPER CARRIAGE RETURN MECHANISM APPLlCATlON FILED NOV. 2. 1920.

1 ,485,5 1 8, Patented Nov. 14, 1922.

4 SHEETS-SHEEI 4.

5 ARZORNEY Patented Nov. 14, i922.

EARL T. EMLEY, OF BROOKLYN, NEW YORK, ASSIGNOB COMPANY, OF WILKES-DEERE,PENNSYLVANIA, A

VANIA.

TO WALES ADDING MACHINE CORPORATION OF PENNSYL- PAPER-CARRIAGE-BETURNMECHANISM.

Application filed November 2, 1920. Serial No. 421,332.

To all whom it may conce'mz:

Be it known that I, EARL T. EMLEY, a citizen of the United States,residing at No. 310 lVindsor Place, borough of Brooklyn, county ofKings, city of New York, and State of New York, have invented new anduseful Improvements in Paper-Carriage-Return Mechanisms, of which thefollowing is a specification.

More especially, this invention relates to a releasable couplingmechanism which is employed as a part of the paper carriage returnmechanism for calculating machines, set forth in the application ofArthur Pentecost, filed June 25, 1920, Serial No. 391,714, and I haveillustrated my invention in conjunction with such device, although theinvention is capable of uses in other mechanical arts.

In the carriage-return mechanism set forth in the Pentecost applicationabovementioned, the operator, when he desires to effect the travel ofthe paper carriage to-' wards the beginning of a line, operates a handleto store power in a spring, such handle also controlling a means torelease the spring for operation, after sufficient power is storedtherein. The spring, when released,

operates a lever to throw in a clutch whereby to connect thecarriage-restoring mechanism with a source of power, as a motor, toreturn the carriage towards the beginning of a line.

Returning the handle to its norm-a1 ositionprior to or at about themoment of the arrival of the carriage at the beginning of a line effectsthe disengagement of the clutch members to disconnect the carriagereturnmechanism from the source of power,

In case the operator omits to disconnect the carriage-return mechanismfrom the source of power, by the time the carriage has about reached thelimit of its return travel, a tappet on the carriage strikes an arm toefiect the positive disengagement of the clutch members connecting thecarriage-return mechanism and the source of power, and my inventionrelates more particularly to this mechanism.

It might occur that an operator, through accident or by design, wouldcontinue to hold the operating lever in operated position after thepaper carriage has arrived at its limit of return travel. In such case,inury and damage to the machine would almost certainly result.

One of the principal objects of my invention s to prevent injury ordamage to the machine from such action, to which end, I provide means toautomatically effect the disconnection of the clutch mechanism from themanual control thereof, as the carriage, when driven from the source ofpower, arr ves at the limitof its travel in one direction, and thedisengagement of the clutch members.

Another object is the provision of a sim le coupling or releasableconnection of t is nature which comprises few parts, occupies but littlespace, and is readily assembled.

To these and other ends, my invention in cludes certain novel featuresand combinations of parts, all of which will be more fully explainedhereinafter and particularly pointed out in the claims.

In. the accompanying drawings, Fig. 1 is a view showing a part of aWales calculating machine, the carriage-restoring mechanism 'and itsconnection. with the armature shaft of the motor which drives themachine;

Fig. 2 isa rear View of the same;

Fig. 3 is a detail plan view of one embodiment of the releasablecoupling forming the subject matter of this invention, the parts beingshown at the moment of their automatic-disconnection Fig. 4 is a planview, parts broken away, showing the carriage-restoring mechanism,including the releasable coupling, in normal position;

Fig. 5 is a detail plan view, partly in section, of the clutch whichconnects. the armature shaft of the motor, and the carriage-returnmechanism, the clutch members being disconnected Fig. 6 is a plan view,similar to Fig. 4, but showing the positions assumed by the parts whenoperating; and

Fig. 7 is a view similar to Fig. 5, showing the clutch members engaged.

Traveling paper carriages shiftable in letter or column spacingdirection, and returnable' towards the beginning of-a line, eithermanually or mechanically, are well known in the art.

Although I have chosen to illustrate my invention in connection with thewell-known Wales calculating machine, examples of which are disclosed inU. S, patents to Wales 7,97,032, August 15, 1905; McFarland 842,-

232, January 29, 1907; Wilgus 1,150,916,,

August 24, 1915, and Pentecost, 1,223,419, April24, 1917, it is obviousthat the device is capable of use in other connections.

Wales machines include a base 969 (Figs. 1, 2, 4 and 6) supporting thecalculating and printing mechanisms partially enclosed in a case 1065(Fig. 1) in the usual manner A carriage bracket 2067 is supported by andextends transversely across the rear end of the machine, the bracketincluding ways or rails 2067 on which travels a carriage slide 2065. Endplates 2010 secured to the carriage slide 2065 support a platen axle2004 on which is mounted the platen 2094.

The paper carriage is drawn from right to left in the usual manner, byaspring drum 2068, (Figs. land 2), the tape 2099 of which is connectedto the carriage slide 2065 at any suitable point.

Tabulating stops 1 (Figs. 2, 4 and 6) on a tabulating bar 2 extendingbetween andjournaled at its opposite ends in the end plates 2010, areadapted to successively'contact a flexible abutment 2024 (Fig. 2), toarrest the carriage at various columnar positions along its path oftravel. The abutment forms part of a carriage escapement whereby thecarriage maybe automatically stepped from right to left to bringsuccessive columns to the printing point.

The stops 1 may be disengaged from their abutment 2024 to permit thecarriage to travel from column to column, by tilting the tabulating bar2, as illustrated in the U. S. patent to Pentecost 1,226,419,1tpri1 2a,1917, above referred to, or. in Schu-ppe, 1,308,117, July 1, 1919, andthe stops 1 may be adjustable alon the bar 2, as illustrated in suchpatents. n the present instance, the abutment 2024 constitutes the pawl(Fig. 2) of an escapement, such pawl being pivoted at 3 on a slidingplate 2024 spanning the space between the rails 2067 and guided on studs2055 projecting from the respective rails A disabling sp'ring 4 attached.to one arm of the pawl tends to shift the tooth of the pawl out of thepath of the tabulating stops 1. Contact of a tabulating stop 1 with thetooth of the pawl or flexible abutment 2024 turns the latter in aclockwise direction (looking from the rear) against the tension of thedisabling spring 4, until the pawl is arrested by the contact of its arm2024", with a stop stud 5 on the sliding plate 2024 at which time, thetooth of the pawl lies squarely across the path of the tabulating stop 1to arrest farther travel of the carriage under the influence of thespring drum 2068.

Means fully set forth and illustrated in the copending application ofArthur Pentecost, filed June 25, 1920, Serial No. 391,714, reciprocatesthe sliding plate 2024 to effect column tabulation of the carriage.

The sliding plate 2024 carries a fixed pallet 16 (1 1g. 2), the leftface of which (looking from the rear) lies substantially in line withthe contact face of the tooth of the pawl 2024?, and just above the pathof travel of the tabulating stops 1, when the parts are in their normalpositions.

As the sliding escapement plate 2024 descends, and prior to thedisengagement of the yielding pawl 2024 from the adjacent tabulatingstop 1, the plate interposes the fixed pallet 16 into the path of thea-djaceht stop 1 to retain the carriage against advancing in columnspacing direction during the forward stroke of the main drive shaft.

As soon as the pawl or abutment 2024 escapes the adjacent tabulatingstop 1, the spring 4 connected to the pawl, rocks the latter in acountenclockwise direction. (looking from the rear) to displace thetooth of the pawl relatively to the tabulating st0p,the carriage at thattime being held stationary by the fixed pallet 16 with which thetabulating stop contacts.

-As the escapement plate ascends, it displaces the fixed pallet 16 fromin front of the adjacent tabulating stop 1, and the spring 4 havingroelted'thepawl or flexible abutment 2024",,so that its tooth no longer,lies adjacentthe fixed pallet 16, the tabulating stop 1 escapes pastthe flexible abutment and the-spring drum 2068 draws the car" riage i-ncolumn spacing direction.

However, the continued ascending travel of the sliding escapement plate2024 immediately introduces the end of the tooth of the flexibleabutment 2024 into the path of the succeeding tabulating stop 1, which,on the farther travel of the carriage, contacts the abutment and turnsit in clockwise direction (viewing Fig. until the arm 2024' of theabutment strikes the stop stud 5, at which time the paper carriage isarrested with the succeeding column positioned at the printing line.

The impact of the successive tabulating stops 1 against the flexibleabutment 2024 under the influence of the spring drum 2068 and theconsequent arrest of the comparttive-ly hea paper carriage, would imparta considera le jar and shock to the machine, to reduce which 1preferably permit the tabulating bar 2 to have a slight amount ofendwise play in the end plates 2010, the extent of which play is limitedby the con--- tact. oi the ends of the bar against the end frames 2010.vOne end of a cushioning device, as a spring 17 (Fig. 2), is attached tothe tabulating bar 2 intermediate its ends, the opposite end of thecushioning device being secured to the adjacent end plate 2010,

to normally hold the tabulating bar 2 at the extreme right hand limit ofits travel (as viewed in Fig. 2). The carriage, in traveling in columnspacing direction (from left to right looking from the rear, as in Fig.2) will impinge its stop 1 against the flexible abutment 2024 whereupon,the tabulating bar 2 will slide towards the left (in Fig. 2) against thetension of the cushioning device 17 which will thus absorb the greaterportion of the shock and jar incident to the arrest of the carriage, andthen reassert itself against the influence of the spring drum 2068 torestore the tabulating bar 2 to its normal position of rest.

The paper carriage may be fed step by step in column spacing direction,until it reaches the end of the line.

It then becomes necessary to return the carriage part way or entirely toits opposite limit of travel, depending upon Whether a new line is to becommenced intermediate the left and right hand margins, or at the lefthand margin.

A carriage-return mechanism, driven from the usual motor 1690 of acalculating machine, automatically restores the carriage from any pointwhich it may have reached in its column spacing travel, to a precedingpoint, or to the beginning of a line, at the will of the operator.

As explained in the application of Arthur Pentecost, above-mentioned,the arrnahire-carrying or motor shaft 18 (Figs. 1 and 2) extendsrearwardly and carries a worm 19 forming one of two coacting separableclutch members.

The motor shaft 18 projects over or within a housing or other suitablesupport 20. A support or plate 21 is slidably mounted in the housing inany convenient manner, as by a pin and slot connection 22, for movementtransversely to the axis of the motor shaft. The lower end of acarriagereturn shaft 23 is provided with a step bearing 24 (Fig. 2)inthe shiftable support 21, and carries a worm wheel 25 adapted toreleasably mesh with the worm 19 on the m0- tor, shaft 18, andconstituting the remaining member of the separable clutch. -Thecarriage-return shaft 23 extends upwardly through a guide bracket 26mounted on the rear of the calculating machine, and can ries a gear 27in mesh at all times with a rack 28 supported by brackets 29 projectingfrom the carriage slide 2065.

A spring 30 (Figs. and 7) connected to the housing 20 and to theshiftable plate 21. respectively, tends to hold the worm wheel apartfrom and. out of mesh with its worm 19. This spring constitutes aclutchdisengaging means.

It wiil he noted that normally. the worm wheel 25 is out of mesh withits worm 19, and as a consequence, the carriage-return To effect suchconnection, a clutch-engaging element in the form of a cam 31 is fast ona. control shaft 32, the lower end of which shaft passes through a slot33 (Figs. 5 and 7) in the sliding plate 21 and has a bearing in thebottom of the housing 20. The control shaft 32 coacts with the pin 22 toguide the shiftable plate 21' in its travel. The face of the cam 31 isadapted to wipe against a roller stud or toe 34 mounted on the slidingplate 21, and the cam face may terminate in an abrupt rise 35 which, bycontact with the-toe 34, arrests the travel of the cam in one direction.

The clutch-control shaft 32 extends upwardly substantially parallel withthe carriage-return shaft 23, through the guide bracket 26 which servesas a bearing .therefor, and at its upper end, carries a trip arm 36 fastthereon, adapted to enter the path of travel of a ta-ppet 37 mounted ator near one end of the carriage-return rack 28.

Rotation of the clutch-control shaft 32 in clockwise direction (Fig. 5)wipes the cam 31 against the toe plate 21 to the right (in said figure)against the tension of the clutch-disengaging spring 30. to engage theworm wheel 25 with the worm 19. The spiral thread on the worm 19, whenthe worm wheel 25 is partially meshed therewith, tends to lead the wormWheel into complete mesh, and it will be ob served that theclutch-engaging element 31 acts to positively enforce the connection ofthe separable members 19 and 25.

The clutch-engaging element 31 might be 34 to crowd the sliding shiftedto effective position automatically.

but a manually-operable means is shown to initiate the operation ofmechanism by which the engagement of the clutch members 19 and 25 iseffected. 2

Such manually-operable means is so arranged that the operator has onlyan indirect control of the clutch-engaging element pletes the removal ofa ledger sheet from the machine, after having made the desired entriesthereon. By this arrangement, the carriage-return mechanism can berestoring the carriage to the beginning of a line, while the operator isfiling the ledger sheet away, and selecting the next ledger sheet to beinserted in the paper carriage.

In ledger posting. it is customary to list at the left hand the oldbalance, shift the carriage to bring the next column to the printingline, list the debits. if any. tabulate the carriage to the next column,and list the credits. after which the carriage shifts to the nextcolumn. in which the new balance is printed. In banking. several columnsmay be assigned to the debit items. which may be the amounts'ofindividual checks, and in case a greater number of checks are to belisted than there are columns appropriated therefor, it is necessary torestore the carriage from the last debit column partway towards thebeginning of the line to bring the first of the debit columns to theprinting point, whereby to start a new line of debit entries.

The operator can at will, initiate or interrupt the return travel of thecarriage at any point in its path of travel, to accommodate the carriageto the exigencies of the particular work being done.

A manually-operable member, as a link 38 (Figs. 1. 4 and (3) extendsfrom front to rear of the machine near the base 969, the rear end of thelink projecting beyond the base and being slotted. as at 39 (Fig. 1) toacconnnmlate the outer end of an actuating lever 40. And my invention isemployed as a releasable connection between the actuating lever 40 andthe clutch-control shaft 32.

Pursuant thereto, the hub 40 of the actuating lever 40 is journaled onthe clutchcontrol shaft 32 to turn freely thereon. An arm 41, which maybe in the form of a segmental plate. is fast on the clutch-control shaftadjacent the hub of the actuating lever 40, and a check stud 4:2 mountedon the arm 41 and projecting into the path of the lever 4-0. limits thetravel of the lever towards or over the arm, to arrest the lever in itshome position. The angular travel of the arm 41 is, of course,controlled by the angular travel of the clutch-engaging element 31 faston the lower end of the clutchcontrol shaft 32.

A dog 43 pivotally mounted at -14 on the actuating lever 10, releasablyengages a keeper 45 carried by the arm 4.1. whereby to enable theactuating lever 40 to turn the clutch-control shaft- 32, in onedirection only, and cause the clutch-engaging element 31 to effect theengagement of the clutch member 25 with the driving clutch member 19.

A. spring 4:6 connected at its opposite ends to the dog 43 and to ananchor post 47 on the actuating lever 40, tends to enforce theengagement of the dog with its keeper 45.

A driving means, as a spring 48, is utilized to shift the actuatinglever to, and consequently, the clutch-engaging element 31 to effectiveposition, such drive spring 48 being conveniently mounted on the rearend of the operable member or link 38 between the outer end of theactuating lever 40 and a cross stud 4:9 mounted in the operable member.The drive spring 48, when energized, is superior to theclutch-disengaging spring 30 and the friction caused by the contact ofthe cam 31 with the toe 34.

A handle (Figs. 1 and 2) pivoted intermediate its ends at 54, to themachine and loosely connected, preferably by the cross stud &9, to theoperable member 38, extends upwardly to a point adjacent the left handside of the carriage to facilitate the operation of the clutch-engagingmember 31 b the operator just as he removes the wor from the machine.

The indirect control of the clutch-engaging element 31 by the operablemember 38 whereby mismanipulation is prevented, is arranged as follows:

Rocking the handle 53 forwardly, thrusts the operable member or link 38rearwardly relatively to the actuating lever 40, the operable membershitting relatively to the actuating lever due to its slotted connection39 therewith. The cross stud 49 in the o erable member or link 38 tendsto press the spring 48 against the actuating lever 40, and obviously, itno restraint is provided, as soon as sutlicent power is stored in thespring 48 to overcome the clutch-disengaging spring 30 and the inertiaand friction of the parts, the drive spring 48 would rock the actuatinglever 40 to operate the clutch-engaging element 31.

To prevent such quasi-control of the clutch-engaging element 31 by theoperable member 38, the actuating lever 40 is retained in its normalidle position by means of a catch or detainer (Figs. 4 and 6) pivoted at56, to the actuating lever 40, and extending forwardly through a guideslot 57 (Fig. 2) in the base 969 of the machine to take over a keeper 58mounted on the base 969. A spring 59 connected at its opposite ends tothe catch 55 and to the actuating lever 40, respectively, tends tomaintain the catch in yielding engagement with its keeper 58.

The catch 55 restrains the actuating lever 40 against shifting theclutch-engaging element 31 to effective position as the operable member38 travels rearwardly, and as a result, power is gradually stored in thedrive spring t8 until it is sufficiently strong to snap theclutch-engaging element 31 smartly to its effective position, to engagethe separable clutch members 19 and 25.

As this stage is reached, a trip finger 60 conveniently mounted on theshifting operable member 38 to travel therewith, contacts a cam face 61on the catch or detainer 55 to disengage the latter from its keeper 58,and thereby tree the actuating lever 40 and its connected parts to theaction of the drive 34 and thereby shift the slide 21 to bring theclutch member or worm wheel 25 into mesh with the drive worm 19, againstthe tension of the clutch-disengaging spring 30. Contact of the abruptcam rise 35 against the toe 34 arrests and maintains the parts ineffective position.

Engagement of the clutch members 19 and 25 assuming the motor 1690 toberunning, enables the motor to drive the carriage-return shaft 23 andthe gear 27 in mesh with the rack 28, to restore the carriage towardsthe beginning 01 a line.

It will be noted that the foregoing arrangement absolutely precludes thepossi-' bility of mismanipula-tion ot' the clutch-engaging element 31 bythe operator.

The actuating lever 40 normally lies near the outer end of the slot 39in the operating link 38. The link, when operated by the handle 53,shifts its slot 39 rearwardly relatively to the actuating lever, butimmedi ately after the trip finger 60 releases the catch 55. the drivespring 48 snaps the actuating lever 40 rearwardly towards the outer endof the slot 39 in, the operable member 38. in meshing the clutchmembers, and thereby places the actuating lever 40 under the control ofthe operator through the handle 53 and the link 38. This enables theoperator at will to swing the clutch-engaging element 31 to itsineffective position, bythe contact of the. actuating lever 41-0 withthe' check stud'42 on the arm %1, and thereby permits theclutch-disabling spring 30 to effect the disengagement of the: clutchmembers and interrupt the return travel of the carriage at any point.

when the operator desires to return the carriage partway only to thebeginning of a line, he will rock the handle 53 forwardly, and the drivespring 48 will effect the engagement of the clutch members, whereuponthe carriage will start its return travel. The operator, by watching theprogress of the columns past the printing point, can determine when thecolumn in which he wishes to print the next item. has returned to theprinting point, at which time he will rock the handle 53 rearwardlythereby advancing the link 38, which draws the actuating lever 40forwardly to withdraw the clutch-engaging element 31 to its ineflectiveposition and thereby free the sliding plate 21 for operation by theclutch-disengaging spring 30 to disconnect the clutch members 19 and 25.The flexible abutment 2024" yields against the tension of its spring 4in a counter-clockwise direction (viewed from the rear) to permit thepassage of the successive tabulat-ing stops 1 as the carriage returnstowards the beginning of a line.

The suspension of the transmission of power to the carriage on itsreturn, may 'occur when none of the tabulating stops 1 are closelyadjacent the left side (viewed from the rear) of the tooth of theabutment, but the carriage feed spring 2068, through the tape 2069 willdraw the carriage in columnspacing direction until the carriage isarrested by contact of the nearest tabulating stop 1 with the abutment2024 The cam face 61 on the detainer or catch 55, with which the tripfinger 60 cooperates to release the catch, isof sutlicient extent tomaintain contact with the keeper 58 when the catch is released, so as toguide the catch back to its eflective position upon the return of theactuating lever 40 to normal. under the control of the operator throughthe link 38, or automaticall as hereinafter set forth.

The trip finger 60 is withdrawn from its proximity to the cam face 61 asthe operable member or link 38 advances to its normal position, wherebyto enable the catch 55 to engage its keeper 58 under the influence ofits spring 59.

To effect the automatic disconnection of the motor 1690 and thecarriage-returning means, when the carriage reaches the beginning of. aline. the carriagereturn rack 28 carries a tappet 37 located at or nearthe right hand end of the rack (looking from the rear, as in Figs. 1, 2,4 and 6). As the carriage arrives at the beginning of a line, the tappet37 collides with the trip arm 36 fast on the upper end of the clutch-control shaft 32, to turn the shaft in a counterclockwise direction andthereby swing the clutch-engaging element 31 to its idle position, tofree the shiftable clutch member 25 to the action of theclutch-disengaging means or spring 30.

The consequent separation of the clutch members 25, 19, interruptsthetransmission of power from the motor to the drive gear 27, andpermits the carriage feed spring 2068 to reassert itself and draw thecarriage in column spacing direction until the first active tabulatingstop 1 contacts the abutment 2024 It might be possible for the operator,either intentionally or unintentionally, to interfere with the automaticshifting of the clutch-disengaging element 1 to its met fectiveposition. by continuing to hold the handle 53 forward after the carriagereaches the beginning of a line. which would maintain the operablemember or link 38 in its rearward position.

To prevent such niismauipulation, 1 provide an automatically operatedmeans for releasing the actuating lever from control of theclutclnengaging element. Thus. a releasing arm 62 having a lip 63thereon. is fast to the upper end of a hollow shaft or sleeve. (ll(Figs. 1 and 2) encircling the up per part of the clutch-control shaft32. The releasing arm 6: extends into the path oi return of the tappet3? which is adapted to collide therewith justprior to its contact withthe trip arm 36. and turn the sleeve in coutiter-clockwise direction.The lower end of the hollou shaft or sleeve 64 rests loosely upon thehub 40 (see Fig. 2) of the actuating lever 40. which hub. in turn. restsloosely upon and is supported by the hub ll of the segmental plate orarm 4-1, secured to the clutch-cmitrol shaft 32. A releasing cam 65 faston the hollow shaft. or sleeve 64. extends over the plate or arm 41. andlies adjacent a releasing stud 66 on the dog 43. which connects theactuating lever 4-0 with the clutch-control shaft 32 through itsengagement with the keeper on the plate 41.

The anchor post 47 mounted in the plate 41. passes through a slot 67 inthe release cam to define the throw of the release cam. and a spring 68connected to the cam and to the anchor post. normally holds the cam atone end of its travel. with the releasing arm 62 in the path of thetappet, 37. and near one end of such path.

In case the operator. after actuating the. handle releases control ofthe same by removing his hand therefrom. the carriage on its return.will cause its tappet 37 to contact the release arm 62 to turn thehollow shat't 64and the release cam 65 counter-clockwise. against thetension of the spring 68, thereby causing the cam to wipe over thereleasing stud 66 on the dog 43 to disengage the dog from its keeper 45.

The carriage immediately thereafter brings its tappet 37 into contactwith the trip arm 36 to turn the latter and the clutchcontrol shaft 32,and thereby shift the clutch-engaging element 31 to its inefiectiveposition.

The tappet 37. in turning the trip arm 36. continues to turn the releasearm 62. and the spring 68 acting as a flexible link between theactuating lever 40 and the release cam 65 will. in the absence ofrestraint imposed by the operator. cause "the return of the actuatinglever 4-0. and catch to normal position, the actuating lever beingpressed against its check stud 42 so that. the dog 43 lies in positionto take over its '1 ,aaasis keeper 45., although disengaged therefrom.The actuating lever, on its return, will restore the operating link ormember 38 and the handle 53 to normal.

As soon as thepower is disconnected from the carriage-return mechanism,the carriage moves slightly towards the right (in Figs. 3, 4 and 6) asthe first active tabulating stop contacts the flexible abutment. 2024f,thereby withdrawing the tappet 37 from proximity to the trip arm 36, andrelease arm 62, which latter. under the influence of the tensionedspring 68, turns in a clockwise direction; to its normal position, the s)ring also swinging the release cam 65 to idle position to permit, thedog 43 to reengage its keeper 4-5.

Assume, however. that the operator maintains control of the operablemember 38 to prevent its return. together with the actuating lever 40.catch and dog 43, to normal position. when the carriage arrives at thebeginning oi a line. The tappet 37 on the carriage. after firstactuating the release arm 62 to cast oil the dog 4-3 from its keeper 45.will, in its farther travel, during which it acts upon the. trip arm 36,merely turn the. release cam 65 a little farther in itscounter-clockwise travel and further tension spring 68.

The arm 41. being disconnected from the actuating lever 40, will swingin a counterclockwise direction under the pressure of the tappet againstthe trip arm 36, relatively to..the dog 43 to shift the keeper 45 awayfrom the dog, as the clutch-engaging element 31 is restored to idleposition. Hence. the operator cannot prevent the disconnection of thecarriage-returning mechanism from the motor when the carriage reachesthe beginning of a line. as the connection between the actuating lever40, link 38 and lever 53, with the arm 41 is completely broken.

Upon the advance of the carriage in column spacing direction at thebeginning of a line to take up the slight space between the firsttabulating stop 1 and the flexible abutment 2024, as above explained,the spring 68 restores the release arm 62 and release cam 65 to normal.thereby freeing the dog 43 to the action of its spring 46. but thekeeper 45 has shifted beyond the dog 43, and the operator. in order toreestablish his indirect control of the clutchengaging element 31, isforced to manually restore the handle 53 to normal position, suchrestoration of the handle. returning the operable member 38. actuatinglever 40. catch 55 and dog 43 to normal.

From the foregoing. it will be noted that the operator can initiallyeffect the operation of the mechanism by which the carriage isreturnable towards thebeginning of a line, and. that he may interruptthe operation of such mechanism at any time duringthe return travel ofthe carriage, but that control by the operator of such mechnism tomaintain it effective is absolutely grohibited.

Changes may be made in the form and arrangement of the several. partswithout departing from the spirit and scope of this invention.

What I claim as'new, is

1. The combination with a reciprocatory carriage; means to drive thecarriage in one I direction; a shiftable element to control theoperation of the drive means, and means to actuate the shiftable elementto one of its positions; of -manually-operative means movable in onedirection to effect the operation of the actuating means for theshiftable element, and in another direction, to switch riage; anda-shiftable elementto control the operation. of the return mechanism; ofactuating means to move the shiftable element to effective position; areleasable connection between the actuating means and the shiftableelement; a manually-operable member 7 having a loose connection with theactuat ing means; and means controlled by the recip'rocatory carriage torelease the connection between the actuating means and the shiftableelement. and to move the shiftable, element independently of themanually-operable member. I

3. The combination with a traveling can riage; a carriage-returnmechanism; a shiftable element to control the operation of thecarriage-return mechanism; and actuating means to shift the element toone of its positions; of manually-operative means movable in onedirection to operate the actuating means, and in another direction toswitch the shiftable element to its opposite position, including meansto releasably connect the'actuating means with the shiftable element;means operated by the carriage to release the connection between thedrive means and the shiftable element, to prevent the control of theelement by the manuallyoperative means; and means also actuated by thecarriage to switch the shiftable element to its opposite positionindependently of the manually-operative means.

4. The combination with a traveling carriage; a carriage-returnmechanism; and a shiftable element to control the operation of thecarriage-return mechanism; of actuating means to shift the element toone of its positions, including means to releasably connect theactuating means with the shiftable element; manually-operative meansmovable in one direction-to control the actuating means and in theopposite direction, to return the shiftable element to normal position;and means operated by the carriage at a predetermined point in itstravel, to interruptthe connection between the actuating means and theshiftable ele ment; and to operate-the shiftable element,

independently of the. manually-operative means.

5. The combination with a traveling carriage; carriage-return mechanismtherefor; and a shiftable element to control the operation of -suchmechanism; of actuating means to shift the element in adirection' tocause the operation of the carriage-return mechanism; amanually-operable member movable in one direction to cause the actuatingmeans to move the shiftable element to effective position, and in the'opposite direction to directly restore the shiftable element toineffective position; a connection.

between the manually-operable member and the shiftable element; andcarriage-controlled means to disable the connection and thereafter, toactuate the shiftable element ,to idle position independently ofjthemanually-operable member.

6. The combination with a traveling paper carriage; means to feed the,carriage in column spacing direction; means to return the carriagetowards the beginning of a line; and a shiftable element .to control theoperation ofthe carriage-return means; of actuating mechanism to operatethe shiftable element to its efiectigve position; a manually-operatedmember adapted to indirectly control. the actuating mechanism to effectthe operation of the shiftable element to efl'ective position, and todirectly control the actuating mechanism to operate the shiftab-leelement to ineflective position; a releasable connection between theactuating mechanism and the shiftable element; release mechanism for theconnection; and meanson the' carriage to operate the release mechanismand to. operate the shiftable element to ineffective position.

7. The combination with a traveling paper carriage; means to feed-thecarriage in one direction; mechanism 'tb return the carriage; andagshiftable element to control the" operation of thecarriage-returnmechanism; of actuating mechanism, includin a spring and a lever, tooperate the shiftable. element to its effective position; amanually-operable member adapted to press the spring against the leverto rock the latter in one direction, the member having' a looseconnection with the lever to permit relative movement; a releasableconnection between the lever and the shiftable element; andcarriage-controlled means to release the connection and operate theshift able element independently of the manuallyoperable member.

8. The combination with, a traveling paper carriage; means to feed thecarriage in one direction; mechanism to return the carriage; and ashiftable element to control the operation of the carriage-returnmechanism; of mechanism, including a manually-operable member and alever, connected for relative movement, to operate the shiftableelementv to its efiective and inefiective positions at will; means totake up the lost motion between the manuallyoperable member and thelever; a releasable connection between the lever and the shift- .able'means; and carriage-controlled means to release the connection andoperate the shiftable element independently of the manually-"operablemember.

9, The combinationwith a traveling paper carriage; means to feed thecarriage in one direction; mechanism to return the carriage; and ashiftable element to control the operation of the carria e-returnmechanism; of mechanism, inclu ing a manuallyoperable member and alever, connected for relative movement, to operate the shiftable elementto its efl'ective and inefi'ective positions at will;'means tq take upthe lost motion between the manually-operable mem-- her and the lever;an arm connected with the shiftable element; a "dog to release-blconnect-the arm and the lever; arelease cam to throw ofi the dog andenable the shiftable element to operate independently of the lever; aflexible link to connect the arm and cam; means to limit the relativemovement of the arm and lever in one di-' rection; and means on thecarriage to cause the release camto throw 0d the dog, said last-namedmeans also adapted to operate the shiftable element independently of themanually-operable member.

10. The combination with a traveling paper carriage; means to feed thecarriage in one direction; mechanism to returnthe the manually-operablemember to shift the actuating lever intone direction; means to delay theoperation of the lever; a trip finger controlled by themanually-operable means to disable the delaying means; a release cam tointerrupt the connection between the arm and the lever; and a tappet onthe carriage to actuate the release cam and the shiftable means insuccession.

11. The combination with a traveling paper carriage; means to feed thecarriage in one direction; vmechanism'to return the carriage, includingseparable clutch members; and a shiftable means, including a shaft and aclutch-engaging member controlled thereby, for eflecting the connectionof the clutch members; of an arm fast on the shaft; an actuating lever;a releasable connection between the arm and lever; means to limit themovement of the actuating levergelatively to the arm in one direction;

a manually-operable member loosely. connected with the lever; a drivespring controlled by the manually-operable member to shift the actuatinglever in one direction;

means to delay the operation of the lever; a trip finger controlled bythe manuallyoperable means to disable the delaying means; a release camto interrupt the connection between the arm and the lever; a tappetonthe carriage to actuate the release cam and the shiftable means insuccession; and a flexible link to connect the actuating lever and therelease cam.

I ream, r. EMLEY.

